is there a way to allow the current group administrator to add more administrators from the front-end .. does buddypress include such feature , and if not , do you know any plugin doing help in that ? or where i should start from to develop this in my own .. i'm trying to use buddypress group as fan page .. and the main function i need from the buddypress groups is the multi admins feature .. i want to give the users the ability to create pages and add more admins , something similar to fb fan page .. hope someone can help
It's already possible to do that in BuddyPress. Log in as a group admin, go to your group and open its "Manage" tab. There you will see a subpage - Members. On this page, you will see the list of all members of the current group. If the member that you want to promote is not there - ask a user to join the group (or send him/her an invite). From "Manage -> Members" page you will be able to click on a "Promote to Admin" next to the member name - and thus the user will become an admin of this group.
More information can be found here: https://codex.buddypress.org/administrator-guide/groups/